Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-10-08
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent

Detection Modules

Detector Tags

Generic Persistence Analytics

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Boot or Logon Autostart Execution (T1547)

Severity

Low

Description

Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary may be an indication of a persistent mechanism on boot that is being actively abused.

Attacker's Goals

  • Attackers aim to get persistence to continue operating even after a reboot.

Investigative actions

  • Check if the Causality Group Owner (CGO) has a related persistence mechanism that may have been abused by an attacker.

Variations

Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary - Explorer CGO

Synopsis

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Boot or Logon Autostart Execution (T1547)

Severity

Informational

Description

Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary may be an indication of a persistent mechanism on boot that is being actively abused.

Attacker's Goals

  • Attackers aim to get persistence to continue operating even after a reboot.

Investigative actions

  • Check if the user is responsible for the action process creation; otherwise, examine the Run//RunOnce (Autoruns) registry keys for possible persistence.


Execution of an uncommon process with a local/domain user SID at an early startup stage with a suspicious characteristics by Windows system binary

Synopsis

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Boot or Logon Autostart Execution (T1547)

Severity

High

Description

Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary may be an indication of a persistent mechanism on boot that is being actively abused.

Attacker's Goals

  • Attackers aim to get persistence to continue operating even after a reboot.

Investigative actions

  • Check if the Causality Group Owner (CGO) has a related persistence mechanism that may have been abused by an attacker.


Execution of an uncommon process with a local/domain user SID at an early startup stage with an uncommon characteristics by Windows system binary

Synopsis

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Boot or Logon Autostart Execution (T1547)

Severity

Medium

Description

Execution of an uncommon process with a local/domain user SID at an early startup stage by Windows system binary may be an indication of a persistent mechanism on boot that is being actively abused.

Attacker's Goals

  • Attackers aim to get persistence to continue operating even after a reboot.

Investigative actions

  • Check if the Causality Group Owner (CGO) has a related persistence mechanism that may have been abused by an attacker.